package sample;
import java.lang.*;

public class DemoMain {

	public static void main(String[] args) {
		 StringBuilder str = new StringBuilder("Tutorial");
		    System.out.println("string = " + str);
		        
		    // insert character value at offset 8
		    str.insert(1, 's');
		        
		    // prints StringBuilder after insertion
		    System.out.print("After insertion = ");
		    System.out.println(str.toString());
	}

}
